Refrigerator.



C. A. KETTERER. REFRIGERATOR.

APPLICATION FILED MAR. 29, 1915. L, Patent-,9d Apr. 17, 1917.

2 SHEETS-SHEET l.

C. A. KETTERER. REFRIQERATOR.

i v APPLICATION FILED MAR. 29| 1915- 1,222,635', Patented. Apr. 17,1917.

2 SHEETS-SHEET 2.

l c Q narran srarns .REFRIGERATOR.

Application filed. March 29, 1915.

To all 'wom t may concern.'

Be it known that l", CHARLES A. Karrieren, a citizen of the UnitedStates, and resident of .East St. Louis, Illinois, have invented certainnew and useful Improvements in Refrigerators, of which the following isa specification containing a full, clear, and exact description,reference being had to the accompanying drawings, forming a part hereof.

J.y invention relates to improvements in refrigerators, of the typeshown and described in Patent No. 1,181,772 granted to me May 2, 1916,wherein a container for cracked ice and salt is provided with verticallydisposed flues exposed to the ice and salt and through which air ispassed, cooled and directed into the refrigerator body.

The object of the improvements in this application is to construct theair ilues 'of sections of different diameters and varying lengths inorder that the overflow points will be at different levels in thevarious flues whereby to provide for overflow from the salt and icethrough each flue regardless of the level of the refrigerator, as awhole.

With the above object in view, my improvements consist in certain novelfeatures of the construction and arrangement of parts which I will fullydescribe, specifically point out in my claims and illustrate in theaccompanying drawings, in which:

Figure 1 is a longitudinal sectional elevation of a refrigeratorembodying my improvements F ig. 2 is a sectional plan taken on the line2*@ of Fig. l;

Fig. 3 is an enlarged plan of the uppermost section of one of the fluesshowing the screen for the upper, open end thereof; and

Fig. 4 is a fragmental, vertical sectional elevation of the flue showingthe screen.

Referring by numerals to the accompanying drawings:

5 designates the refrigerator body, the side walls 6 of which may be ofany approved, insulated construction, and which has at its rear thehinged doors 7 and at its top the hinged door 8, the former providingaccess to the refrigerator body for purposes of cleaning and repair, andthe latter providing access to the ice container.

Extending from the refrigerator are one or more display cases 9 whoseinteriors are direct communication. with the refrigere Speceation ofLetters Patent.

Patented Apr. 17, 1917.. Serial No. 17,749.

ator and whose walls are of any approved insulated construction andpreferably glazed, so that wares may be displayed therein.

lThe ice and salt container which is placed in the refrige 1atorcomprises a lower section 10 which, as shown, is rectangular in plan,and of hopper shape. At each corner there is a. support in the foi-in ofan angle iron 11, and to which the section 10 is secured.

The inclined lower walls of this section 10 are each perforated atintervals and in each perforation there is inserted a tube 11 which arecach flanged at their lower ends for securing about said perforations.These tubes 11 are of varying heights, are preferably made of corrugatedsheet metal, and each tube has adjacent its upper end a transverse rod12. Slipped into each tube 11 and supported on the rod l2 is a tube 13,of plain f sheet metal, and like the tubes l1 the tubes 13 are ofvarying heights, and have at their upper ends the transverse rods la.

Slipped into thev upper ends of the tubes 13 are the tubes 15 which restupon the rods lei and are of varying heights with their upper ends insubstantially the same plane. rThese tubes 15 are made of corrugatedsheet material and each has at its upper end a crimp 1G whichconstitutes a support for a screen 17, designed primarily to prevent icefrom falling through the tubes when being supplied to the container, andwhich screen prefer to make of a single strip of sheet metal in the formof a spiral.

The upper section 18 of the ice container is of rectangular form in planand is secured to the supports 11, with its lower end overlapping theupper end of the lower section and spaced therefrom by said supports.

This upper section extends to substantially the level of the upper endsof the uppermost tubes, and which is by preference the full height ofthe refrigerator body, except such spacing as is required to furnish airto the tubes from the top of the refrigerator. Over the top of thecontainer there is a cover 19, having openings 2O registering with thetubes. This cover is designed to form with the body of the container acomplete closure for the ice and salt in order to minimize moisture inthe refrigerator as well as to conserve ice.

At the bottom of thecontainer l provide a drain cock, which is bypreference kept open when the refrigerator is iced-and in use.

In arranging the walls of the container of overlapping and laterallyspaced wall sections it is apparent that brine from the salt and icewill flow between the spaced walls, down the exterior wall of the lowersection and remove any accumulated frost and prevent furtheraccumulation of frost so long as the level of ice and salt is above saidspaced wall portions.

All the tubes are made of the laterally spaced sections for the samereason as given for the container walls and I find that air inf passingdownwardly through clean tubes uninsulated with heavy coats of frostwill Vmore nearly become the temperature of the ice and salt, than whenpassed over or between surfaces which are laden with accumulated frost.

The construction of the tubes shown, z'. e., of alternate plain andcorrugated cylinders I consider one inexpensive and practicable way ofproviding openings at intervals into the ice and salt container, but donot wish to be considered as limiting myself to this one form, as manymodifications suggest themselves to me, and will be obvious to othersskilled in the art.

Copies of this patent may be obtained for five cents that claim as newand desire to secure by Letters Patent of the United States is:

1 In combination with a salt and ice container, a plurality of openended tubes extending through said container, each of said tubes beingconstructed of telescoping sections and certain of said sections beingconstructed of plain material and the remaining sections constructed ofcorrugated material, whereby to provide for the iiow of brine from thesalt andicecontainer over the interior faces of said tubes.

2. In combination with a salt and ice container, a plurality of openended tubes eX- tended through the said container, each tube beingconstructed of alternate plain and corrugated telescoping sections, thesaid sec- Y tions varying in lengths in the several tubes to provide forthe flow of brine from the container at different elevations into, andover the interior surfaces of said tubes.

ln testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

CHARLES A. KETTERER.

Witnesses:

R. G. ORWIG, E. L. WALLACE each, by addressing the Commissioner ofPatents,

Washington, D. C.

